Look through your CD collection, ask your friends or relatives if you can borrow some. Rip them on FLAC, and seed, seed, seed - they have a few boxes that snatch every new upload, so you're guaranteed an average of 500MB uploaded every time you do this. They also have a list of albums that are only present in FLAC, so you can also transcode those to 320, V0, V2 (lossless -> lossy transcodes are allowed) and gain even more upload.
That and freeleech torrents.
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